User's Manual

Table Of Contents
Installation, Operation and Service Manual 90DIB500R41IM_FCC02 99.1 35
DIB-500 R4.1 Product description
Constituents
3.1.1.1 Terminal block
The terminal block provides terminals for connecting the V
DC
voltage supply and distrib-
utes the internal V
DC
supply in the equipment rack. Each equipment rack (except for the
Cavity variant of the Cavity equipment rack) features a separate terminal block.
Voltage supply connector for VAC voltage supply
For the V
AC
voltage supply, the voltage supply connector is implemented via the optional
V
AC
voltage supply unit, see section 3.1.1.2 on page 36.
The terminal block can be accessed from above after the upper equipment rack cover
has been removed. Figure 3.3 shows a section of the top view of the DIB-500 R4.1 and
the position of the terminal block.
Figure 3.3 Position of the terminal block (top view)
Earthing connection (commissioning)
The earthing connection must be established via a threaded bolt on the frame of the
equipment rack, see section 5.6.1 on page 107.